1. science

    2 liters of water at 80.c is found into a plastic bucket containing 10 liters of water at 20.c what is the final temperature of water ( density of water 1kg/litre) (neglect the heat gained by bucket and specific heat capacity of water = 1cal/gm.c ?

    asked by yash on August 24, 2012
  2. physics

    2 liters of water at 80.c is found into a plastic bucket containing 10 liters of water at 20.c what is the final temperature of water ( density of water 1kg/litre) (neglect the heat gained by bucket and specific heat capacity of water = 1cal/gm.c

    asked by Anonymous on August 24, 2012
  3. Earth Science

    1. The water cycle is the _____. A. distribution of drinking water on Earth ?**? B. unending circulation of Earth's water supply ?**? C. the recycling of water after industrial use ?**? D. the evaporation of water from Earth's surface ?**? 2. Plants

    asked by PleaseHelpMe777 on November 6, 2016
  4. Science

    An object accelerates (changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the folloeing objects will accelerate EXCEPT a)a ball striking a wall, in which the force of the ball

    asked by Barbie on May 1, 2008
  5. science

    an object accelerates (cahnges its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the following objects will accelerate EXCEPT a) a ball striking a wall, in which the force of the ball

    asked by barby on May 1, 2008
  6. science

    an object accelerates (cahnges its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the following objects will accelerate EXCEPT a) a ball striking a wall, in which the force of the ball

    asked by barby on May 1, 2008
  7. Science

    An object accelerates (changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the folloeing objects will accelerate EXCEPT a)a ball striking a wall, in which the force of the ball

    asked by Annie on April 30, 2008
  8. Science

    An object accelerates (changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the folloeing objects will accelerate EXCEPT a)a ball striking a wall, in which the force of the ball

    asked by Barbie on May 1, 2008
  9. chemistry

    A swimming pool, 20.0 m ✕ 12.5 m, is filled with water to a depth of 3.81 m. If the initial temperature of the water is 18.9°C, how much heat must be added to the water to raise its temperature to 30.1°C? Assume that the density of water is 1.000 g/mL.

    asked by Darylynn on April 19, 2017
  10. Physics

    A 1.5 kilowatt electric motor on a water well pumps water from 10 meters below the surface. The density of the water is 1 kilogram per liter. How many liters of water does the motor pump in one hour?

    asked by Anonymous on December 2, 2016
  11. Environmental Studies

    Since most domestic water suppliers/communities in the U.S. rely on surface water (rivers, dams, lakes) for their water supplies, why should groundwater be protected and managed just like surface water?

    asked by Thano on July 14, 2008
  12. Chemistry

    A swimming pool, 20.0 m 12.5 m, is filled with water to a depth of 3.73 m. If the initial temperature of the water is 18.5°C, how much heat must be added to the water to raise its temperature to 28.5°C? Assume that the density of water is 1.000 g/mL.

    asked by Chuck on March 28, 2013
  13. Chemistry

    A swimming pool 20.0m *12.5 is filled with water to a depth of 3.5m. if the initial temperature of water is 18.4C how much heat must be added to the water to raise its temperature to 29.0C? Assume that the density of water is 1.000g/mL

    asked by Anonymous on February 22, 2010
  14. Math

    Kara Maria poured herself a glass of 16 ounces of water. She drank 1/2 of her water in the morning. At lunch time she took the remaining water and drank 1/2 of that. How much water did she have left/ Would my answer be 1/4.

    asked by Kim on January 22, 2015
  15. chemistry

    A swimming pool, 20.0 m 12.5 m, is filled with water to a depth of 3.73 m. If the initial temperature of the water is 17.7°C, how much heat must be added to the water to raise its temperature to 28.7°C? Assume that the density of water is 1.000 g/mL.

    asked by nicole on March 26, 2011
  16. science

    Based on the treatment scheme, what type(s) of raw water is / are being treated? Groundwater River water Riverbank filtrate Lake water Infiltrated river water

    asked by yet on October 21, 2013
  17. Physics

    someone swings a bucket of water in a vertical circle. Describe the water's motion to another person? or How would you? & also how to explain the motion of the water to them? How come the water didn't fall on the persons head?

    asked by Adam on March 16, 2016
  18. Chemistry

    A student synthesized 6.895 g of barium iodate monohydrate by adding 30.00 mL of 5.912 x 10-1 M sodium iodate, NAIO3. 125 mL of distilled water as used to wash and transfer the precipitate, rather than 20 mL of chilled distilled water (at 4* C). The

    asked by Chelsea on October 7, 2011
  19. Engineering Economics

    Sales of bottled water in the U.S totaled 16.3 gallons per person in 2004. Water costs .40 cents per bottle.A municipal company provides tap water for $2.10 per 1000 gallons. If the average person drinks two bottles of water per day or uses 5 gallons per

    asked by Margie on October 10, 2011
  20. Physics 11

    The speed of water waves is 30cm/s in deep water & 15cm/s in shallow water. If the wavelength in deep water is 1.0cm, what is the wavelength in shallow water? (v2/v1)=(wavelength2/wavelength1) Therefore (15/30)=(wavelength2/1) - 15=30wavlength2

    asked by Kayla on June 11, 2017
  21. Chemistry

    A compressed air tank carried by scuba divers has a volume of 9.5 L and a pressure of 140 atm at 20∘C. If the gas was instead in a cylinder with a floating, massless, frictionless piston, what would the volume of the gas be (in liters) at STP? Express

    asked by Jessica on November 5, 2016
  22. English

    This topic is deleting satistical data and examples. original material Water is an important part of the earth.In fact, water is the reason human beings live on the planet.Water is everywhere.It is in the atmosphere, the air that people breathe. it is in

    asked by Taletha on October 30, 2009
  23. chemistry - enthalpy change and finiding volume of

    29. Consider the following chemical equations and their enthalpy changes. CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) ΔH = −8.0 × 102 kJ CaO(s) + H2O(_) → Ca(OH)2(aq) ΔH = −65 kJ What volume of methane, at 20°C and 100 kPa, would have to be combusted in

    asked by Farah on June 8, 2011
  24. maths

    ajana and maya went for picnic.their mother gave them a water bottle that contain 4 litre water. maya consumed 3/4 of water and ajana consumed the remaining water. how much water maya drink? and what fraction of total quantity of water anjana drink?

    asked by shehzad on May 7, 2015
  25. chemsitry

    You have been provided 100mL of a 1000ug/ml barium standard what volume of this standard must be diluted into 50mL of ID water to produce a 30 ug/ml standard ? if you given a full 100mL of the same standard provied calculate the amount of standard and

    asked by Samah on January 31, 2010
  26. Chemistry

    At 20 degrees C ethanol has a density of 0.789 g/ml and H2O has a density of 1.0 g/ml. What is the % by volume of ethanol of a solution made by adding 50g of ethanol with 50g of H2O? Tutor Answer: Use density = mass x volume to convert 50 g ethanol to

    asked by Shelly on November 30, 2011
  27. Chem

    Consider a glass of 277 mL of water at 25°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved. To find the mass of water use the density of water = 1.0 g/mL. I have no idea how to

    asked by Don on February 1, 2011
  28. AP Chem

    Hey guys! Thanks for any help in advance! I'm back with this problem: Calculate the percent dissociation for a 1.00 × 10-6 M solution of HCN at 25 °C. Ka = 4.90 × 10-10. So my question really is do I have to use water when I calculate the percent

    asked by Allie on October 12, 2015
  29. Water Treatment

    Based on the treatment scheme, what type(s) of raw water is / are being treated? Groundwater River water Riverbank filtrate Lake water Infiltrated river water please post answer

    asked by Naifaru on October 19, 2013
  30. Physical science

    Help Please . Aisha drops an antacid tablet in water and times how long it takes to dissolve. Which of the following will decrease the reaction rate? A.increasing water temperature B.decreasing water temperature C.using more water

    asked by Brittany on March 22, 2013
  31. 3rd homework

    the water cycle! lesson I water on earth type of water 1. ? where found 2. ? 3 ? 4 ? uses 5. ? 6. ? 7. ? 8. ? where found 9. ? 10. ? 11. ? uses 12. ? 13. ? 14. ? 15. where salt and fresh water meet is called an ? please help with the ?'s. I have no idea

    asked by choconcung on October 27, 2010
  32. Chemistry

    A portable electric water heater transfers 255 watts (W) of power to 5.5 L of water, where 1 W = 1 J/s. How much time (in minutes) will it take for the water heater to heat the 5.5 L of water from 25 degrees celsius to 42 degrees celsius? (Assume that the

    asked by Elle on February 9, 2012
  33. Math

    The volume V of gas varies inversely as the pressure P on it. If the volume is 240 cm^3 under pressure of 30 kg/cm^2, what pressure has to be applied to have a volume of 160 cm^3 ?

    asked by Gennelle on July 11, 2016
  34. Calculus

    Show that a right-circular cylinder of greatest volume that can be inscribed in a right-circular cone that has a volume that is 4/9 the volume of the cone. Please, help out, this is for a study guide for a quiz. :) Thank you.

    asked by Amy on January 12, 2012
  35. Chemistry

    A quantity of 1.435g of naphthalene (C1oHs), a pungent-smelling substance used in moth repellents, was burned in a bomb calorimeter (constant volume). Consequently, the temperature of the water rose from 20.17°C to 25.84°C. If the mass of the water

    asked by Anonymous on September 30, 2018
  36. physics 1401!

    A closed-end tube is evacuated and placed with its open end beneath the surface of a reservoir of water. The water rises to a height of 9.5 m. If the density of water is 1000 kg/m^3, what is the pressure at the bottom of the column of water?

    asked by christine on July 7, 2015
  37. physics

    A 1.41-kg aluminum pot contains 2.25 L of water. Both pot and water are initially at 17.5°C. How much heat must flow into the pot and the water to bring their temperature up to 92.7°C? Assume that the effect of water evaporation during the heating

    asked by maria on December 9, 2011
  38. chemistry

    When 25 mL of C2H5OH (density 0.80 g.cm-3) is dissolved in water to prepare a 250 mL solution, the density of the solution was found to be 0.950 g.cm-3. Calculate a. Molarity of pure ethanol; b. Molarity of ethanol in the final solution; c. Volume of the

    asked by avni on August 22, 2016
  39. Chemistry

    Can someone please help me with the following? How do I find the specific heat of a metal when the only information I have is a temperature change ( of -73 degrees C) and a mass (of 22.53 grams)? And what is the forumla for specific heat? Thanks in

    asked by April on October 12, 2006
  40. Physics

    An engine works between the two temperatures 200 C and 120 C. Calculate its efficiency in percentage?

    asked by Anonymous on May 1, 2016
  41. Computers

    How does a search engine work? List the four main parts of an e-mail header.

    asked by jason on May 2, 2011
  42. Math natural logarithms

    The efficiency e of a gasoline engine as a function of its compression ratio r is given by e =1− r^(1−γ) , where γ is a constant. Find γ for e = 0.55 and r = 7.5

    asked by barry on May 16, 2015
  43. physical science

    inside the cylinders of a diesel engine, what helps to ignite the fuel and air?

    asked by Coby on May 10, 2010
  44. physics

    How much work is needed to lift a 400kg engine upward 1.5 meters out of a car?

    asked by avery on December 9, 2012
  45. phys

    A reversible engine with an efficiency of 32.0% has TC = 304.0 K. (a) What is TH? (b) How much heat is exhausted for every 0.138 kJ of work done?

    asked by opp on April 30, 2012
  46. PHYSICS

    a 1500kg sports car accelerates from 0 to 30 m/s in 8 seconds. Whaat is the power of its engine?

    asked by GRISSELL on February 24, 2012
  47. PHYSICS

    a 1500kg sports car accelerates from 0 to 30 m/s in 8 seconds. Whaat is the power of its engine? Please help

    asked by TRACY on February 27, 2012
  48. math

    The efficiency e of a gasoline engine as a function of its compression ratio r is given by e =1− r1−γ , where γ is a constant. Find γ for e = 0.55 and r = 7.5.

    asked by Mat on May 10, 2015
  49. physics

    How much work is needed to lift a 400kg engine upward 1.5 meters out of a car?

    asked by avery on December 9, 2012
  50. physics

    How much work is needed to lift a 400kg engine upward 1.5 meters out of a car?

    asked by avery on December 9, 2012
  51. Tech Please help

    Which of the following is a search engine? A) Mozilla Firefox B)Internet Explorer C)Google*** D)Safari

    asked by Beyblade Burst is Aweosme on April 13, 2018
  52. Social studies

    Can you check my answers? 1;what was the effect of WWI on SC? A;state economy shrunk*** B;citizens used more resources C;factoryy production slowed D;women worked mens jobs 2;How did the end of WWI affect farmers in SC? A;crop prices dropped*** B;rural

    asked by please help!! on April 11, 2016
  53. Science

    How do sound waves travel between a boat and a submarine in sonar technology? A. Because of water particles. B. Because of water waves. C. Because of water ripples. D. Because of water currents. Is it A?

    asked by Anonymous on May 2, 2014
  54. SCIENCE HELP PLS

    Which of the following is a source of graywater? Sewage water Shower water Water waste from an auto repair garage Water waste from a chemical company is it b

    asked by Oscar on January 31, 2016
  55. Science

    How do sound waves travel between a boat and a submarine in sonar technology? A. Because of water particles. B. Because of water waves. C. Because of water ripples. D. Because of water currents. B?

    asked by Anonymous on May 2, 2014
  56. physics

    Bird bones have air pockets in them to reduce their weight–this also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone in air and in water and finds its mass is 43.0 g

    asked by Paige on April 11, 2014
  57. Science

    36kg of some material undergoes a process in a piston-cylinder apparatus starting with an initial volume of .057m^3 and pressure of 680kPa. The final volume is twice the initial. Compute the work done by the substance for the following processes: (a)

    asked by J.T. on July 21, 2015
  58. science

    You measure the dimensions of a rectangular block of aluminum to determine its volume. It has the following dimensions. length = 10.27 cm; width = 4.92 cm; height = 1.53 cm Assuming that each of these measurements is accurate to the nearest 0.01 cm, find

    asked by christina on February 3, 2014
  59. Physics

    Energy Budget for a Rocket in Free Space: Recall the analysis of the rocket engine in Project I, Flight of the Rocket. Although the momentum of the rocket and its exhaust is conserved (constant), their energy is not; energy must be supplied by the

    asked by Steve on March 4, 2015
  60. Physics

    Energy Budget for a Rocket in Free Space: Recall the analysis of the rocket engine in Project I, Flight of the Rocket. Although the momentum of the rocket and its exhaust is conserved (constant), their energy is not; energy must be supplied by the

    asked by Steve on March 4, 2015
  61. chemistry

    If 987g of oxygen gas reacts completely with hydrogen gas, what volume of water vapor will be produced (in L) at 0.954 atm and 465 degree=es celcius?

    asked by Kierstin on May 13, 2016
  62. science

    Calculate the specific volume of an air-vapour mixture when the temp=30 degree Celsius, water vapour content Mw=0.015 kg/kg, total pressure Pt=90kpa Please any one can help me>

    asked by cris on February 13, 2011
  63. Chemistry 20

    What volume, in millilitres, of distilled water must be added to 105 mL of 0.600 mol/L sulfuric acid solution in order to dilute it to a concentration of 0.400 mol/L

    asked by Anonymous on November 16, 2010
  64. chemistry

    supposed we mixed 50.0mL of alcohol w/ enough water to make 400mL solution find the % age by volume of 50L??? what is the answer plz answer my qeustion!!!

    asked by cris on March 1, 2013
  65. Impossible chemistry

    2. A eudiometer contains 45 ml of oxygen when the barometer reading is 731.7 mm and the temperature is 27* C . The water level inside the tube is 68mm higher than that outside . What volume does the dry oxygen occupy at S.T.P?

    asked by Noodle on June 19, 2011
  66. Chemistry 3A

    in a lab experiment, 133mL of gas was collected over water at 24 degrees Celsius and 742 torr. Calculate the volume that the dry gas would occupy at STP.

    asked by Gurjot on December 4, 2012
  67. Chemistry

    Consider the following reaction: H2O(l) + 3NO2(g) --> 2HNO3(l) + NO(g) What volume of NO (in L) is produced starting from 1.80 g of water and 11.5 g of NO2 at 300 K and 1 atm? (use R = 0.0821 L atm/mol K). I am completely confused :(

    asked by Lauren K. on December 10, 2010
  68. Chemistry

    What is the concentration of chloride ions (in) in a solution prepared by adding 0.075 moles of calcium chloride to 425 mL water,assuming no volume change up on mixing? Thanks!

    asked by Wendy on April 24, 2012
  69. Chemistry

    2. A eudiometer contains 45 ml of oxygen when the barometer reading is 731.7 mm and the temperature is 27* C . The water level inside the tube is 68mm higher than that outside . What volume does the dry oxygen occupy at S.T.P?

    asked by Noodle on June 19, 2011
  70. chemistry

    If you dissolve 236.5 g of (NH4)3PO4 and 166.9 g of K3PO4 in enough water to make the volume of the solution 505.0 mL What is the molarity of ammonium ions and phosphate ions?

    asked by Jade on November 2, 2014
  71. Chemistry

    You dissolve 2.35 g of sodium carbonate (Na2CO3) in sufficient water to produce a final solution volume of 100.0 mL. Assuming all of the solid dissolves, calculate the solution pH.

    asked by Anonymous on March 16, 2017
  72. Pre-Calculus

    Water is spraying from a nozzle in a fountain forming a parabolic path. The nozzle is 10 cm above the service of the water. The water achieves a max height of 100 cm above the waters surface and lands in the pool. The water spray is again 10 cm above the

    asked by Lucina on March 11, 2015
  73. Chem 125

    Three bulbs are connected by tubing, and the tubing is evacuated. The volume of the tubing is 27.0 mL. The first bulb has a volume of 37.0 mL and contains 5.65 atm of argon, the second bulb has a volume of 250 mL and contains 2.16 atm of neon, and the

    asked by Marisa on October 17, 2016
  74. Physics

    A high diver of mass 65.0 kg steps off a board 10.0 m above the water and falls vertical to the water, starting from rest. If her downward motion is stopped 2.30 s after her feet first touch the water, what average upward force did the water exert on her?

    asked by Emily on January 29, 2012
  75. Math please help

    Please only one answer for each question. For questions 1-3, identify the situation that each graph could represent. 1. A. the length of a necklace that you make at a rate of 10 cm per hour without taking a break. B. The height of a balloon as it rises,

    asked by Clawdeen on March 4, 2018
  76. Chemistry

    In the experiment shown below, you add some salt to water. A = All of the solid dissolves (no solid at the bottom). B = You add more water and the solid stays dissolved. Select all of the following that are true about solutions A and B. The same number of

    asked by Rachel on November 10, 2011
  77. geometry

    You have looked at it two times before. There are 30 questions worth 30 points. Part 1 Multiple Choice: Select the best answer from the choices provided. (Each question is worth one point) 1. Determine how many wheels are turning clockwise. 1 2 none 2.

    asked by joe on June 23, 2009
  78. Biology

    The water cycle is best described by which of the following statements? Water in the atmosphere must be converted to another chemical before animals can use it. The water on earth changes forms as it moves from one reservoir to another.>----- My answer As

    asked by Sara on June 22, 2015
  79. GEOMATERY

    AN OPEN WATER TANK WITH LENGTH 20CM AND WIDTH 15CM HOLD 4.8 LITER OF WATER .CALCULATE THE HEIGHT OF WATER LEVEL IN THE TANK AND THE TOTAL SURFACE AREA OF THE CUBOID IN CONTACT WITH THE WATER

    asked by ZIM on August 30, 2015
  80. Calculus - free body diagram

    A water tank has the shape of an inverted right circular cone whose base radius is equal to half its height. Water is being pumped in at 2 cubic meters per second. How fast is the water rising when the water is 3 meters deep?

    asked by Lizzy on October 8, 2012
  81. chemistry

    Question Part Points Submissions Used A swimming pool, 20.0 m ✕ 12.5 m, is filled with water to a depth of 3.85 m. If the initial temperature of the water is 18.9°C, how much heat must be added to the water to raise its temperature to 28.7°C? Assume

    asked by D on March 26, 2014
  82. Phyisic

    a student wanted to investigate whether or not the temperature of the water would affect the solubility of sugar she had three glasses of water each with 200 ml of water in them one was at 10 c the second a 25c and the third one was at 40 c she found that

    asked by Anonymous on August 18, 2017
  83. science

    what method of separation would do the best job to separate sand and water? hint* What would happen to the water if you put the mixture of sand and water in a pan and heated it on a stove for quite a long time? What's it called when water goes into the

    asked by jenna on June 21, 2006
  84. Physics

    A solar still is used to make fresh water from salt water by evaporation. Assume that during a summer day that 1000 BTU/ft sq of solar energy falls on the surface of the salt water. Determine how many inches of water are evaporated in 30 days. Assume that

    asked by Steve on September 9, 2015
  85. Physics

    A solar still is used to make fresh water from salt water by evaporation. Assume that during a summer day that 1000 BTU/ft sq of solar energy falls on the surface of the salt water. Determine how many inches of water are evaporated in 30 days. Assume that

    asked by Aaron on September 19, 2010
  86. physic

    An automobile is moving in an easterly direction at a velocity of 100km/hr. He sees an emergency vehicle and slows down to 60 km/hour. If it takes him 5.0 seconds to slow down, what is his acceleration?

    asked by Musa on May 17, 2013
  87. physics

    many automobile passengers suffer neck injuries when struck by cars from behind. how does newtons law of inertia apply here?why would a headrest help guard against whip-lash

    asked by lisa on May 3, 2012
  88. Physics

    Why do seat belts reduce the likelihood of injury in an automobile accident? Why do airbags? Express your answers in terms of the physics principles we've been learning this week?

    asked by Morgan on March 30, 2018
  89. Chemistry

    Classify the following type of stoichiometry problem: How many grams of zinc must react with an excess volume of hydrochloric acid to yield 0.500 g of zinc chloride? mass-mass problem mass-volume problem volume-volume problem mole-mole problem none of the

    asked by Jacquie on March 8, 2016
  90. health

    where can i find information on teen driving laws in the metropolitan area [maryland, virginia, district of columbia], and i'm not allowed to use google? Arrrrggggghhhhh. You will have to see at your school if the Drivers Ed teacher has Va, Md, and DC

    asked by anon.s on April 15, 2007
  91. Computer Science 40

    Please help me with this homework assignment. I tried everything and it still didn't work. The question is: Use three variables volume, radius, and height to write a program that can be use to calculate the volume of a cylinder. Formula: volume = radius x

    asked by Mailo Her on January 17, 2011
  92. physics.pls help

    The volume of a cylinder is defined by the formula V=pie R squared h. If initially have a cylinder with a volume of 10m cubed. Find the volume of the cylinder if the height doubles and if the height is cut in half. pls i really need help.

    asked by ted on November 4, 2011
  93. Physics

    The rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water. The sudden converse of water to water vapor causes a dramatic expansion that can rip apart shoes. Water has density 1000 kg/m^3 and requires 2256

    asked by Scott on February 25, 2011
  94. AP Chemistry

    Water is being electrolysed in the presence of a non-reactive electrolyte under standard conditions. If 2.5 amperes of current flows through the circuit for 13.6 minutes at 25 degrees celsius and 1 atmosphere, what volume of hydrogen gas is produced?

    asked by Toni on January 26, 2013
  95. fish tank;; deals with volume. :]

    A cylinder shaped fish talk is 40cm high and has a radius of 12cm. The tank with be layed with a decorative gravel on the bottom. The blue layer will be 2 cm high. The yellow layer will be 3 cm high. And the green layter will be 2cm high. [assume water

    asked by blah. volume... on October 28, 2007
  96. math

    You are designing a rain gutter made from a piece of sheet metal that is 1 foot by 5 feet. The gutter is formed by turning up two sides. You want the rain gutter to have the greatest volume possible. Below is the polynomial function that represents the

    asked by john on February 16, 2012
  97. science

    1.why is freshwater a limited resource? a)because most water on earth is in lakes** b)because most water on earth is in clouds c)because most water on earth is in the ground d)because most water on earth is salt water

    asked by HOMEWORK on March 22, 2015
  98. Math

    The volume of a certain quantity of gas is inversely proportional to its pressure. If its pressure is 1000 grams per square cm, when its volume is 3m³, what will the pressure be when the gas is compressed to a volume of 2m³? (Thanks in advance in helping

    asked by Jason on September 22, 2016
  99. Chemistry

    A student determined the calorimeter constant of the calorimeter. The student added 50.00 mL of cold water to 50.00 mK of heated , distilled water in a styrofoam cup. The initial temp of the cold water was 21,00C and the hot water, 29.15C. The maximum temp

    asked by Yari on November 14, 2016
  100. Chemistry Organic

    Can someone please send me a link or tell me what happens when the following reactions takes place? As in...the colour change (if any) and any other observations * Phenol in water * Phenol in excess water * Phenol in hot water * and then Phenol in hot

    asked by Daggeron on March 26, 2008